The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
A pyranone that is 4-hydroxy-3-methyl-2H-pyran-2-one in which two of the hydrogens of the methyl group are replaced by a cycloprop-2-en-1-yl group and a 3-{[N-(tert-butoxycarbonyl)-beta-alanyl]amino}phenyl group (S-configuration) and in which the hydrogen at position 6 is replaced by a 1-phenylbutan-2-yl group (R-configuration).